Police Have 'Robust' Invisible Security Plan For Independence Day

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WASHINGTON - JULY 17: A U.S. Park Police officer parks his crusier near the base of the Washington Monument along the National Mall at dusk July 17, 2006 in Washington, DC. In the past 45 days 12 people, including 10 tourists, have been victims of armed robberies along the National Mall in the area stretching from the Washington Monument to the Smithsonian Arts and Industries Building. All of the incidents happened at night and two of them involved sexual assaults. Federal law enforcement agencies like the Park Police have stepped up their patrols in popular tourist areas in the nation's capital. (Photo by Chip Somodevilla/Getty Images)

Law enforcement officials are ramping up security in the area ahead of the region's celebration of the Fourth of July.

When special forces raided Osama bin Laden's compound in Pakistan, they found documents stating al-Qaida had considered attacking the United States on Independence Day.

To ward off any potential threats, Park Police Chief Teresa Chambers said all of her officers will be on duty, but she said much of the increased security will be invisible to Independence Day revelers.

"The greatest amount of security is that which you will not see. A combination of technology and plain clothes officers and lots of enhanced ways to improve safety is probably the most robust plan that I've ever seen. I'm very proud of our team," she said.

Chambers also said if you notice anything out of the ordinary, just pass it on to an officer.